Ltjbbicating carriage-axles



VJ.E.EMERSON.

, LUBRIGATOR. No 27,785. Patented Apr. 10,1860.

2'' a g A I & a 13'" Witnesses:

lnventorf UNI-TE sTA'rEsrArEN-T JAMES E. EMERSON, OF SAN FRANCISCO,GALIEORNIA.

LUBRICATING CARRIAGE-AXLES.

Specification of Letters Patent No. 27,785, dated April 10, 1860.

"To all whom it may concern:

Be it known that 1, JAMES EMERSON, of San Francisco, in the county ofSan Francisco and State of California, have invented a new and usefulImprovement in Lubricating the Axles of Vehicles; and I do herebydeclare that the following is a full, clear, and exact descriptionthereof, reference beinghad to the accompanying drawings, forming a partof this specification, in. which Figure 1 represents a central sectiontaken through the hub of a wheel for a carriage, showing the axle in thesame, and the device for supplying oil to the axle. Fig. 2 is anenlarged View of the tube and valve arrangement detached from the hub,showing the valve and stem in two positions, one when the oil is allowedto flow from the tube, and the other position when the flow of oil isstopped.

Similar letters of reference indicate corresponding parts in bothfigures.

The object of. this invention is to provide a cheap, compact, andefficient self oiling device which is to be arranged in such a relationto the axle of the wheel as to supply oil to the same without removingthe wheel as is at present done, before the axle can be perfectly oiled.My invention provides for supplying the axle whenever necessary eitheron the road or in the carriage house; and by simply moving a thumbscrew, a free supply of fresh and pure oil may be supplied to the axle,at the same time the impure oil on the axle cannot enter the feedingbox. I

For this purpose my invention consists in the employment of a suitableoil receptacle, with a peculiar valve stem, and valve with a screw cap,arranged in such a way, and introduced through the hub and axle box asto be free from injury, and so as not to be affected by the wear of theaxle box as will be hereinafter described and represented.

In the drawings A represents an ordinary hub of a carriage, B, the axle,and C, the axle box. These parts are in common with those of anyordinary vehicle, and are represented in the drawings merely toillustrate more clearly my self oiling device. This device consists of ametal tube E, which is bored nearly through, leaving a portion F, with asmall hole a, punched through it, communicating with the oil receptacle,this end of the tube has a screw thread cut on it, which is tappedthrough the axle box C, as shown by Fig. 1. In the top of tube E isscrewed a cap G, with a long screw neck to which is secured the stem J.This stem passes down through the center of the tube, and at c, is anenlargement forming a valve, having its seat in the portion F, the stemcontinues down through the perforation a, in tube E, and terminates atthe bottom of the tube.

The hub A is bored out to receive the tube A, which is fitted into thishole, and secured by screwing it through the axle box C, as shown anddescribed, the thumb screw, or cap G, being the only portion of thedevice which is in sight.

It will be seen from this description of my selfoiling device forcarriage hubs, or for oiling axles, or shafts of any description, thatby loosening the cap Gr, sufficiently to raise the valve 0, from itsseat, the oil may be supplied to the axle rapidly, or as slow as may bedesired, the tube or oil receptacle may be made sufliciently large tocontain a good supply of oil, which will be kept closed, and free fromdirt, so that pure oil only will be supplied to the axle, the short stembetween the valve and axle, will prevent the used up oil or tar in theaxle box, from entering the tube E, and this portion of the valve stemserves as a guide for the valve, and this, with the portion F, of thetube E, allows for any wear in the axle box, without injury to theperfect operation of the parts. The cap can be removed, and the tube maybe filled with oil at any time, and the axle may 'be oiled when thevehicle is in motion, whenever it requires it.

These devices can be manufactured and sold very cheap, and when onceapplied to a set of wheels, will last as long, or longer than thewheels, saving much time and trouble of axle by means of a screw cap,valve stem and valve, arranged and operating essenl0 tially as setforth, and for the purposes described.

JAMES E. EMERSON. Witnesses: 7

WM. THOMPSON, M. M. LIVINGSTON.

